Home / 7,571.78-10,447.46-4,427.36

Finding the Fourth Proportional to 7,571.78, 10,447.46 and 4,427.36

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Solution

The fourth proportional to 7,571.78, 10,447.46 and 4,427.36 is: 6,108.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,571.78 : 10,447.46 = 4,427.36 : x
  2. Step 2: Convert to fraction form
    7,571.78/10,447.46 = 4,427.36/x
  3. Step 3: Cross multiply
    7,571.78x = 10,447.46 × 4,427.36
  4. Step 4: Simplify right side
    7,571.78x = 46,254,666.51
  5. Step 5: Solve for x
    x = 46,254,666.51/7,571.78
  6. Step 6: Final answer
    x = 6,108.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.